# 11.9: Solving Equations Using the Pythagorean Theorem

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**At Grade**Created by: CK-12Estimated8 minsto complete

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**Practice**Solving Equations Using the Pythagorean Theorem

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Hypotenuse

The hypotenuse of a right triangle is the longest side of the right triangle. It is across from the right angle.Legs of a Right Triangle

The legs of a right triangle are the two shorter sides of the right triangle. Legs are adjacent to the right angle.Pythagorean Theorem

The Pythagorean Theorem is a mathematical relationship between the sides of a right triangle, given by , where and are legs of the triangle and is the hypotenuse of the triangle.### Image Attributions

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Use the Pythagorean Theorem to find a right triangle's missing side lengths.

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Date Created:

Oct 01, 2012
Last Modified:

Apr 11, 2016
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